Exhaust System, Installing Without Tension

WARNING: This page is about a different car, the 2015 Audi A8 Quattro, 2014 Audi A8 Quattro, and 2013 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Procedure

Align the exhaust system when cold.

Vehicles without Double Clamps Between Center and Rear Mufflers

Fig 1: Pressing Center Muffler Toward Front

Courtesy of AUDI OF AMERICA, LLC

-- Loosen the bolts on the front clamping sleeves.

-- Push the exhaust system far enough forward -arrow- until the preload on the retaining loops in front of the center muffler is -a- = 6 to 10 mm.

-- Tighten the clamping sleeve threaded connections evenly.

Vehicles with Double Clamps Between Center and Rear Mufflers

Fig 2: Pressing Center Muffler Toward Front

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The center muffler also needs to be aligned on vehicles with clamping sleeves between the center and rear mufflers.

-- Loosen the bolts on the front and rear clamping sleeves.

-- Push the exhaust system far enough forward -arrow- until the preload on the retaining loops in front of the center muffler is -a- = 6 to 10 mm.

-- Tighten the front clamping sleeve threaded connections evenly.

-- Push rear part of exhaust system far enough forward -arrow- so that the pretension at rear retaining loops of rear mufflers is -a- = 11 to 15 mm.

Fig 3: Identifying Retaining Loop Pretension

Courtesy of AUDI OF AMERICA, LLC

-- Align rear muffler horizontally.

-- Tighten the rear clamping sleeve threaded connections evenly.

Tightening Specifications

Refer to OVERVIEW - MUFFLER